CN202484219U - Spindle reduction gearbox for numerical control machine tool - Google Patents
Spindle reduction gearbox for numerical control machine tool Download PDFInfo
- Publication number
- CN202484219U CN202484219U CN2011204986149U CN201120498614U CN202484219U CN 202484219 U CN202484219 U CN 202484219U CN 2011204986149 U CN2011204986149 U CN 2011204986149U CN 201120498614 U CN201120498614 U CN 201120498614U CN 202484219 U CN202484219 U CN 202484219U
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- China
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- gear
- machine tool
- numerical control
- control machine
- shift fork
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Abstract
The utility model relates to a spindle reduction gearbox for a numerical control machine tool. A spindle motor connection base is connected with a gearbox body and is fixed on the gearbox body through bolts, an input shaft is connected with the gearbox body, an internal gear ring is fixed on the gearbox body through bolts, a middle gear is connected with the input shaft and engages with a planet gear which engages with an internal gear and is connected with a planet gear carrier, an output shaft is connected to the planet gear carrier, an output shaft fixing sleeve is connected with the gearbox body, an output shaft connecting flange is connected with the output shaft, a shift fork fixing plate is connected with the gearbox body, a shift fork is connected with the shift fork fixing plate, and a shift gear mechanism is connected with the shift fork. According to the spindle reduction gearbox for the numerical control machine tool, a disadvantage of fixed speed ratio of conventional spindle reduction gearboxes is overcome, two-gear shifting is realized, wherein a constant-speed running at a speed ratio of 1:1 can fulfill the requirements for a high-speed cutting, and a decelerated running at a speed ratio of 1:4 can fulfill the requirements for a low-speed cutting and raise a torque by three times, thereby improving applicability of the spindle reduction gearbox.
Description
Technical field
The utility model relates to a kind of numerical control machine tool speed reducer, particularly a kind of main shaft of numerical control machine tool speed reducer.
Background technique
Before the utility model invention; Same numerical control machine tool is in order to satisfy high-speed cutting, and the maximum speed of spindle of numerical control machine tool changes for 6000-8000 mostly, by the servo principal axis motor driving; And in slow-revving cutting occasion; Need significantly turn down the servo principal axis rotating speed of motor again, thereby the servo principal axis power of motor is descended, cutting rate reduces.In order to address this problem, people expect a main shaft speed reducer is installed between servo principal axis motor and main shaft naturally, so just can under the situation that runs up, can satisfy slow cutting again.
But this another new problem just occurred, promptly since common main shaft speed reducer with the fixed speed ratio decelerate, and the speed ratio that can not return to 1: 1 runs up, so it just can not satisfy the high-speed cutting of main shaft.
Summary of the invention
The purpose of the utility model will overcome above-mentioned defective exactly, and a kind of main shaft of numerical control machine tool speed reducer is provided.
The technological scheme that the utility model adopted is: before the utility model invention; Same numerical control machine tool is in order to satisfy high-speed cutting, and the maximum speed of spindle of numerical control machine tool changes for 6000-8000 mostly, by the servo principal axis motor driving; And in slow-revving cutting occasion; Need significantly turn down the servo principal axis rotating speed of motor again, thereby the servo principal axis power of motor is descended, cutting rate reduces.In order to address this problem, people expect a main shaft speed reducer is installed between servo principal axis motor and main shaft naturally, so just can under the situation that runs up, can satisfy slow cutting again.
A kind of main shaft of numerical control machine tool speed reducer, its major technique are characterised in that connecting base, input shaft, inner gear ring, fixed cover, shift fork fixed plate are connected with casing respectively, and middle gear is connected with input shaft; Middle gear and planetary pinion engagement, planetary pinion and internal gear engagement, planetary pinion is connected with planetary carrier; Output shaft is connected with planetary carrier; Adpting flange is connected with output shaft, and shift fork is connected with the shift fork fixed plate, and power shift gear mechanism is connected with shift fork.
Advantage of the utility model and effect are to be provided with planetary gear set and power shift gear mechanism on the main shaft speed reducer, have realized two grades of speed changes of speed reducer, and one grade is 1: 1 speed ratio constant speed drive, has satisfied the high-speed cutting demand; Another shelves are 1: 4 speed ratio decelerate, make the slow cutting moment of torsion increase four times, have satisfied the slow cutting demand, have improved the applicability of main shaft speed reducer.Directly connect with spindle motor, need not band or mesomerism gear synchronously, provide cost savings.Have a wide range of applications on big part processing less from aluminium to the steel.
Description of drawings
The plan view of Fig. 1---the utility model.
Each label representes that parts are following among the figure:
Input shaft 1, connecting base 2, shift fork fixed plate 3, shift fork 4, casing 5, fixed cover 6, adpting flange 7, output shaft 8, middle gear 9, planetary pinion 10, internal gear 11, planetary carrier 12, inner gear ring 13, power shift gear mechanism 14.
Embodiment
As shown in Figure 1:
Through being bolted on the casing 5, input shaft 1 is connected with casing 5 respectively for (spindle motor) connecting base 2, inner gear ring 13, and middle gear 9 is connected with input shaft 1; Middle gear 9 and planetary pinion 10 engagements, planetary pinion 10 and internal gear 11 engagements, planetary pinion 10 is connected with planetary carrier 12; Output shaft 8 and planetary carrier 12 engagements; (output shaft) fixed cover 6 is connected with casing 5, and (output shaft) adpting flange 7 is connected with output shaft 8, and shift fork fixed plate 3 is connected with casing 5; Shift fork 4 is connected with shift fork fixed plate 3, and power shift gear mechanism 14 is connected with shift fork 4.
The utility model application note is following:
When the needs high-speed cutting, servo principal axis motor (omit among the figure, do not draw) directly is connected with input shaft 1; With upwards (clockwise) rotation of shift fork 4, its other end is stirred power shift gear mechanism 14, and also while and internal gears 11 mesh with inner gear ring 13 downwards to make power shift gear mechanism 14; Because inner gear ring 13 is fixed on the casing 5 and therefore meshes with internal gear 11 through power shift gear mechanism 14, and internal gear 11 is fixedly stopped operating, this moment, the driving of input shaft 1 was delivered on the planetary pinion 10 by middle gear 9; Planetary pinion 10 drives planetary carrier 12 and rotates, and planetary carrier 12 and output shaft 8 engagements, the adpting flange 7 that drives on the output shaft 8 rotates; Adpting flange 7 connects with main shaft (omit among the figure, do not draw) through belt pulley and belt (omit among the figure, do not draw); The final servo principal axis motor of realizing (omits among the figure; Do not draw) to 1: 4 speed ratio decelerate of main shaft (omit among the figure, do not draw), realize high-speed cutting.
When the needs slow cutting, servo principal axis motor (omit among the figure, do not draw) directly is connected with input shaft 1; Shift fork 4 downward (counterclockwise) is rotated, and its other end is stirred power shift gear mechanism 14, makes upwards also while and input shaft 1 and internal gear 11 engagements of power shift gear mechanism 14; This moment, input shaft 1 drove internal gear 11 and middle gear 9 simultaneously, and internal gear 11 meshes with planetary pinion 10 again with middle gear 9 simultaneously, planetary carrier 12 and output shaft 8 engagements; The adpting flange 7 that drives on the output shaft 8 rotates, and adpting flange 7 (omits among the figure with main shaft through belt pulley and belt (omit among the figure, do not draw); Do not draw) connect; The final servo principal axis motor (omit among the figure, do not draw) of realizing is to 1: 1 speed ratio constant speed drive of main shaft (omit among the figure, do not draw).
The utility model has realized that a kind of main shaft of numerical control machine tool speed reducer possesses two grades of speed changes; One grade is 1: 1 speed ratio constant speed drive; Satisfied the high-speed cutting demand, another shelves are 1: 4 speed ratio decelerate, make the slow cutting moment of torsion increase four times; Satisfy the slow cutting demand, improved the applicability of main shaft speed reducer.Input shaft 1 directly is connected with spindle motor, need not band or mesomerism gear synchronously, provides cost savings.
Claims (6)
1. a main shaft of numerical control machine tool speed reducer is characterized in that connecting base, input shaft, inner gear ring, fixed cover, shift fork fixed plate are connected with casing respectively, and middle gear is connected with input shaft; Middle gear and planetary pinion engagement, planetary pinion and internal gear engagement, planetary pinion is connected with planetary carrier; Output shaft is connected with planetary carrier; Connecting flange connects with output shaft, and shift fork is connected with the shift fork fixed plate, and power shift gear mechanism is connected with shift fork.
2. a kind of main shaft of numerical control machine tool speed reducer according to claim 1 is characterized in that input shaft directly is connected with the servo principal axis motor.
3. a kind of main shaft of numerical control machine tool speed reducer according to claim 1 is characterized in that when being in high-speed cutting, and shift fork upwards rotates; Its other end is stirred power shift gear mechanism downward and internal gear and inner gear ring engagement; Input shaft connects middle gear, and middle gear connects planetary pinion, and planetary pinion connects planetary carrier; Planetary carrier and output shaft engagement, output shaft is connected with adpting flange.
4. a kind of main shaft of numerical control machine tool speed reducer according to claim 3 is characterized in that servo principal axis motor and main shaft speed ratio are 1: 1.
5. a kind of main shaft of numerical control machine tool speed reducer according to claim 1 is characterized in that when being in slow cutting, shift fork rotates; Its other end is stirred power shift gear mechanism and is upwards meshed with input shaft and internal gear; Input shaft is connected with middle gear with internal gear, internal gear and middle gear and planetary pinion engagement, and planetary pinion is connected with planetary carrier; Planetary pinion and output shaft engagement, output shaft is connected with adpting flange.
6. a kind of main shaft of numerical control machine tool speed reducer according to claim 5 is characterized in that servo principal axis motor and main shaft speed ratio are 1: 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204986149U CN202484219U (en) | 2011-12-01 | 2011-12-01 | Spindle reduction gearbox for numerical control machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204986149U CN202484219U (en) | 2011-12-01 | 2011-12-01 | Spindle reduction gearbox for numerical control machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202484219U true CN202484219U (en) | 2012-10-10 |
Family
ID=46958645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204986149U Expired - Fee Related CN202484219U (en) | 2011-12-01 | 2011-12-01 | Spindle reduction gearbox for numerical control machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202484219U (en) |
-
2011
- 2011-12-01 CN CN2011204986149U patent/CN202484219U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20151201 |
|
| EXPY | Termination of patent right or utility model |